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https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
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eac85fbd08
When rtsx_pci suspends, the card reader hardware powers off but the sdmmc driver's prev_power_state remains as MMC_POWER_ON. This causes sd_power_on to skip reinitialization on the next I/O request, leading to DMA transfer timeouts and errors on resume 20% of the time. Add a power_off slot callback so the PCR can notify the sdmmc driver during suspend. The sdmmc driver resets prev_power_state, and sd_request checks this to reinitialize the card before the next I/O. Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev> Link: https://patch.msgid.link/20260105060236.400366-2-matthew.schwartz@linux.dev Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
39 lines
899 B
C
39 lines
899 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* Driver for Realtek driver-based card reader
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*
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* Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
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*
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* Author:
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* Wei WANG <wei_wang@realsil.com.cn>
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*/
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#ifndef __RTSX_COMMON_H
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#define __RTSX_COMMON_H
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#define DRV_NAME_RTSX_PCI "rtsx_pci"
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#define DRV_NAME_RTSX_PCI_SDMMC "rtsx_pci_sdmmc"
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#define RTSX_REG_PAIR(addr, val) (((u32)(addr) << 16) | (u8)(val))
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#define RTSX_SSC_DEPTH_4M 0x01
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#define RTSX_SSC_DEPTH_2M 0x02
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#define RTSX_SSC_DEPTH_1M 0x03
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#define RTSX_SSC_DEPTH_500K 0x04
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#define RTSX_SSC_DEPTH_250K 0x05
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#define RTSX_SD_CARD 0
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#define RTSX_MS_CARD 1
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#define CLK_TO_DIV_N 0
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#define DIV_N_TO_CLK 1
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struct platform_device;
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struct rtsx_slot {
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struct platform_device *p_dev;
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void (*card_event)(struct platform_device *p_dev);
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void (*power_off)(struct platform_device *p_dev);
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};
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#endif
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